#1 once that wall is built it will start saving us billions of dollars immediately in social services, Court costs, and incarceration costs. Not to mention it will greatly impact the illigatimate narcotic trade which costs us billions each year.

#2 it isn't even going to cost that much. I worked on the boarder wall in Arizona and New Mexico in 1999 and 2000. We used reclaimed materials to do it, I was in the Marine reserve assigned to a mission with JTF-6. It's a simple task involving inexpensive materials. Won't even take long to complete, probably 6 months.